Remove prints

Author: Kevin Kim

labelbox/data/serialization/ndjson/label.py

@@ -31,7 +31,6 @@ def to_common(self) -> LabelGenerator:
             grouped_annotations[annotation.data_row.id or
                                 annotation.data_row.global_key].append(
                                     annotation)
-        print(grouped_annotations)
         return LabelGenerator(
             data=self._generate_annotations(grouped_annotations))